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A CMOS multi-channel low-voltage current mode filter circuit is designed. The designed current-mode filter is based on linear cascode current-mode integrator that is newly proposed in this paper. When it is compared with that of the typical current-mirror type current-mode integrator, the proposed linear cascode current-mode integrator achieves high current gain and unity gain frequency. The designed filter is composed with 5th Chebyshev function and converted to active version by signal flow graph method. We verified that the designed filter can be applied to three-channel basedband, bluetooth, DECT and WCDMA with 0.51MHz~7.03MHz frequency tuning range by Hspice simulation using 1.8V-0.18㎛ CMOS technology. Key Words : Low-voltage, Current mode filter, Continuous-time filter, Current-mode integrator, Low-pass filter *  : (jhbang@jbnu.ac.kr) 09 10 15  09 11 09  09 12 16 1.          IC                  [1,2].      RF Mixer     ,  A/D            .                  [3,4].         1.8V           ,           RC , Gm-C           [5,6].          ,

A Multi-channel CMOS Low-voltage Filter with Newly Current-mode Integrator